added back the alias Darrell
On Thu, Jan 16, 2020 at 8:00 PM Darrell Ball <dlu...@gmail.com> wrote: > Thanks for the report Anju > > Extensive testing was done without tunnels (both PVP and P2P; flows > 2-100k). > Threads and queues were also varied. The testing is about a year old now > however > and there were some minor conntrack changes after that, which I would not > have expected to have a big impact; > well, at least till now. > > This report is interesting however. > > 1/ What kind of user traffic - UDP ? > > 2/ What about threads and queues ? > > Thanks Darrell > > On Wed, Jan 15, 2020 at 10:59 PM Anju Thomas via discuss < > ovs-discuss@openvswitch.org> wrote: > >> Hi, >> >> >> >> We are moving to latest OVS viz OVS 2.12 (Earlier we were on 2.8) . We >> noticed a significant drop in performance for flows with conntrack (40-50% >> drop in Traffic going over Vxlan ) . On further analysis , we could pin >> this drop in performance to the below commit >> >> >> >> commit 967bb5c5cd9070112138d74a2f4394c50ae48420 >> >> Author: Darrell Ball <dlu...@gmail.com> >> >> Date: Thu May 9 08:15:07 2019 -0700 >> >> >> >> conntrack: Add rcu support. >> >> For performance and code simplification reasons, add rcu support for >> >> conntrack. The array of hmaps is replaced by a cmap as part of this >> >> conversion. Using a single map also simplifies the handling of NAT >> >> and allows the removal of the nat_conn map and friends. Per >> connection >> >> entry locks are introduced, which are needed in a few code paths. >> >> >> >> >> >> >> >> Has anyone noticed this and if so is there any way to get around this as >> well (We don’t use NAT connections)? >> >> >> >> Is there a specific case where this could give better performance ? >> >> >> >> Regards >> >> Anju >> >> >> _______________________________________________ >> discuss mailing list >> disc...@openvswitch.org >> https://mail.openvswitch.org/mailman/listinfo/ovs-discuss >> >
_______________________________________________ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
